EXCLUSIVE: Shania Twain stuns at CMT Artists of the Year event, reveals how she stays in incredible shape

The 51-year-old singer slayed at the CMT Artists of the Year event in Nashville, Tennessee, on Wednesday, sporting a figure-hugging black La Petite Robe di Chiara Boni jumpsuit. ET caught up with the legendary country star, who gave us her secrets to maintaining her incredible figure.

"I just have to fight eating a lot of my favorite foods like french fries and any carbohydrates, which is a real drag," Twain admits to ET's Sophie Schillaci. "I have to just try to dominate my diet with more proteins. I love vegetables anyways, so that's OK, but it's just really hard keeping the carbs down, but that's what I do! That's my discipline -- keeping the carbs down."

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Shania Twain arrives on the red carpet at CMT Artists of the Year 2016 at Schermerhorn Symphony Center on October 19, 2016 in Nashville, Tennessee. (Photo by Terry Wyatt/WireImage)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Shania Twain arrives on the red carpet at CMT Artists of the Year 2016 at Schermerhorn Symphony Center on October 19, 2016 in Nashville, Tennessee. (Photo by Terry Wyatt/WireImage)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Shania Twain arrives on the red carpet at CMT Artists of the Year 2016 at Schermerhorn Symphony Center on October 19, 2016 in Nashville, Tennessee. (Photo by Terry Wyatt/WireImage)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Shania Twain arrives on the red carpet at CMT Artists of the Year 2016 at Schermerhorn Symphony Center on October 19, 2016 in Nashville, Tennessee. (Photo by Terry Wyatt/WireImage)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Carrie Underwood (L) presents an award to Shania Twain (R) on stage during CMT Artists of the Year 2016 on October 19, 2016 in Nashville, Tennessee. (Photo by John Shearer/Getty Images for CMT)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Shania Twain recieves an award on stage during CMT Artists of the Year 2016 on October 19, 2016 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)

NASHVILLE, TN - OCTOBER 19: Honoree's Luke Bryan, Shania Twain, Thomas Rhett, Chris Stapleton and Kelsea Ballerini take photos on stage during CMT Artists of the Year 2016 on October 19, 2016 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)

NASHVILLE, TN - OCTOBER 19: (L-R) Honoree's Kelsea Ballerini, Shania Twain and Carrie Underwood take photos backstage during CMT Artists of the Year 2016 on October 19, 2016 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Carrie Underwood (L) presents an award to Shania Twain (R) on stage during CMT Artists of the Year 2016 on October 19, 2016 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)

NASHVILLE, TN - OCTOBER 19: Singer-songwriter Luke Bryan (L) and Shania Twain (R) arrive on the red carpet at CMT Artists of the Year 2016 on October 19, 2016 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)

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Twain also maintains an active lifestyle.

"I play a lot of tennis. I love horses so I'm riding all the time," she adds. "I like just staying active."

Of course, Twain definitely has a few cheat days on occasion!

"My favorite junk food is dill pickle chips. It's a Canadian thing!" she shares. "I love a lot of cheat things but I try to balance it out and reward myself when I know I've done really well. Like, after tonight, I'm gonna pig out on something really bad!"

Twain received the Artist of a Lifetime honor at the event, and was serenaded with a medley of her biggest hits by Meghan Trainor, Jill Scott, and Kelsea Ballerini. The trio brought down the house with her 1999 hit, "Man! I Feel Like a Woman!"